Beach & water quality guide — which coast to visit, top beaches, and what to expect
In winter, South Maui (Wailea, Kīhei) is the driest and calmest coast for swimming. West Maui (Kaʻanapali, Lahaina area) gets some rain but the resort beaches remain mostly swimmable. The North Shore (Hoʻokipa) sees big surf — great for watching surfers and windsurfers, not for swimming. East Maui (Hana) receives heavy rainfall and has limited beach access.
These beaches have elevated risk factors this month. Check current conditions before you go.
Maui’s South Shore (Wailea, Kīhei) recovers fastest from rain — often within 24 hours — because it’s the driest coast. West Maui takes 48–72 hours. Rainy-day alternatives: Maui Ocean Center, Iʻao Valley (if not flooding), Lahaina town shopping and galleries, upcountry Maui farm tours.
Maui is the premier whale watching destination — humpback whales arrive in November and peak January through March. The Maui Whale Festival runs through February. Holiday season brings cultural celebrations across the Valley Isle.
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Maui in December is in the wet season with higher rainfall and bigger surf on exposed coasts. Average rainfall is 2.5 inches (on the dry side), water temperature is 75–77°F, and advisory risk is moderate–high. Wet season — conditions vary by coast. Choose the dry/calm side of the island.
In December, Maui's South Shore (Wailea, Kihei) and West Side (Ka'anapali) offer the calmest conditions. The North Shore (Ho'okipa) has big surf — for watching, not swimming.
Yes, it can rain on Maui in December, but conditions vary dramatically by location. The dry/leeward side averages about 2.5 inches for the month, while the wet/windward side can receive 5-10x that amount. Winter months see more rainfall overall, which can elevate bacteria levels near stream mouths.
The best beaches on Maui in December include Wailea Beach, Kamaole III, Ka'anapali Beach. These are recommended for December because they are on the calmer, drier side of the island away from heavy surf and rainfall.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health or any government agency. Water quality ratings are estimates based on publicly available testing data and seasonal patterns. They are not real-time measurements and may not reflect current conditions.
Always verify current water quality conditions with the Hawaii DOH Clean Water Branch before entering the water.
When in doubt, don't go out. 🤙